Is it possible to put an ESXi 6.x LOCAL datastore into maintenance mode?

[Rob_Bohmann1]

In 5.x  i would put each hosts local datastore into maintenance mode to prevent accidental deployment of files or VMs to the local datastore.

I do not seem to be able to do this - there is no option visible in the traditional and much loved client,  and in the web client there is a menu option but it is greyed out and inactive?

Was this capability removed in ESXi 6?

[DavoudTeimouri]

The feature is available and not removed!

Please consider:

Maintenance mode is available to datastores within a Storage DRS-enabled datastore cluster. Standalone datastores cannot be placed in maintenance mode.

The situation is same for ESXi 5.1, 5.5 and 6.x.